Skip to content

Delete the cost sweep's wall-clock figures instead of re-measuring them - #496

Merged
lhqing merged 1 commit into
mainfrom
docs/495-drop-the-timings
Aug 22, 2026
Merged

lhqing merged 1 commit into
mainfrom
docs/495-drop-the-timings

Conversation

@lhqing

@lhqing lhqing commented Aug 22, 2026

Copy link
Copy Markdown
Contributor

Closes #495.

The sweep's wall clocks were taken while barcode correction and UMI collapse had a one-entry list to work against (#493), so they are floors rather than slopes. No decision reads them, so they are deleted rather than scheduled for an arc re-run.

  • Removed: the STAR wall column and the ~21 s + 3 s per million reads fit.
  • Kept: the peak-RSS table and the flat-at-the-index finding. The omitted work does not grow with read depth, so that result survives its own instrument's defect; the intercept omits only what a 6.8 M-entry list costs STARsolo, which is noise against 31 GB.
  • Kept: STAR's reported sort requirement. Barcode matching does not gate alignment, so the record count was identical either way.
  • The caveat block shrinks accordingly — it no longer defers a judgement to a re-run that will not happen.

No pipeline behaviour changes; this is the research doc only.

…measured

The sweep priced barcode correction and UMI collapse against a one-entry list,
so its wall clocks are floors, not slopes. Nothing rests on them, so the column
and the ~21 s + 3 s per million reads fit are gone instead of scheduled for a
re-run: a number no decision reads is not worth an arc job.

The memory table stays. The omitted work does not grow with read depth, so
flat-at-the-index survives its own instrument's defect, and the intercept omits
only what a 6.8M-entry list costs STARsolo.

The caveat shrinks to match -- it no longer defers a judgement to a re-run that
will not happen.
Copilot AI lite review requested due to automatic review settings August 22, 2026 20:07

Copilot AI left a comment

Copy link
Copy Markdown

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Copilot was unable to review this pull request because the user who requested the review has reached their quota limit.

@lhqing
lhqing merged commit 82b3409 into main Aug 22, 2026
6 checks passed
@lhqing
lhqing deleted the docs/495-drop-the-timings branch August 22, 2026 20:08
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Labels

None yet

Projects

None yet

Development

Successfully merging this pull request may close these issues.

Re-run kb e2e-cost on arc: the published hg38 curve was priced against a whitelist STARsolo could not match

2 participants